protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
DataTable cart1 = new DataTable();
if (e.CommandName == "select")
{
if (Session["shopcart2"] == null)
{
cart1.Columns.Add("商品编号", typeof(string));
cart1.Columns.Add("商品名称", typeof(string));
cart1.Columns.Add("单价", typeof(double));
cart1.Columns.Add("订购数量", typeof(int));
cart1.Columns.Add("合计", typeof(double));
Session["shopcart2"] = cart1; }
// Response.Write("<script>alert('购物车中没有任何商品!') </script>"); cart1 = (DataTable)Session["shopcart2"];
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = GridView1.Rows[index];
//Session[Session.SessionID+"uid"] = Label1.Text;
//System.Web.UI.WebControls.GridViewRow rows = (GridViewRow)((Control)sender).Parent.Parent;
TextBox tt = ((System.Web.UI.WebControls.TextBox)row.Cells[1].FindControl("TextBox1"));
string spl = tt.Text;
int sl = int.Parse(spl);
string bh = row.Cells[2].Text;
string name = row.Cells[3].Text;
string sdj = row.Cells[4].Text;
double dj = double.Parse(sdj);
DataRow rr = cart1.NewRow();
rr["商品编号"] = bh;
rr["商品名称"] = name;
rr["单价"] = dj;
rr["订购数量"] = sl;
double zj = dj * sl;
rr["合计"] = zj;
cart1.Rows.Add(rr);
Session["shopcart2"] = cart1;
} }
这是前一个页面的代码,gridview数据源绑定为session["shopcart2"],可是怎么不显示?pageload 事件里写了databind了,就是不显示??!!
{
DataTable cart1 = new DataTable();
if (e.CommandName == "select")
{
if (Session["shopcart2"] == null)
{
cart1.Columns.Add("商品编号", typeof(string));
cart1.Columns.Add("商品名称", typeof(string));
cart1.Columns.Add("单价", typeof(double));
cart1.Columns.Add("订购数量", typeof(int));
cart1.Columns.Add("合计", typeof(double));
Session["shopcart2"] = cart1; }
// Response.Write("<script>alert('购物车中没有任何商品!') </script>"); cart1 = (DataTable)Session["shopcart2"];
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = GridView1.Rows[index];
//Session[Session.SessionID+"uid"] = Label1.Text;
//System.Web.UI.WebControls.GridViewRow rows = (GridViewRow)((Control)sender).Parent.Parent;
TextBox tt = ((System.Web.UI.WebControls.TextBox)row.Cells[1].FindControl("TextBox1"));
string spl = tt.Text;
int sl = int.Parse(spl);
string bh = row.Cells[2].Text;
string name = row.Cells[3].Text;
string sdj = row.Cells[4].Text;
double dj = double.Parse(sdj);
DataRow rr = cart1.NewRow();
rr["商品编号"] = bh;
rr["商品名称"] = name;
rr["单价"] = dj;
rr["订购数量"] = sl;
double zj = dj * sl;
rr["合计"] = zj;
cart1.Rows.Add(rr);
Session["shopcart2"] = cart1;
} }
这是前一个页面的代码,gridview数据源绑定为session["shopcart2"],可是怎么不显示?pageload 事件里写了databind了,就是不显示??!!
GridView1.DataSource=(DataTable)session["shopcart2"];
GridView1.DataBind();//这句不能少
GridView.DataBind();
是这样写的啊